Question

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13,25:0,75+13,25:0,25 +13,25:0,325

1/4:0,25-1/8:0,125+1/2:0,5-1/16:0,0625

Answer 1

nhanh giúp mk ạ

Answer 2

\(13,25:0,75+13,25:0,25+13,5:0,325\)

\(=13,25:\left(0,75+0,25+0,325\right)\)

\(=13,25:1,325\)

\(=10\)

\(\dfrac{1}{4}:0,25-\dfrac{1}{8}:0,125+\dfrac{1}{2}:0,5-\dfrac{1}{16}:0,0625\)

\(=\dfrac{1}{4}:\dfrac{1}{4}-\dfrac{1}{8}:\dfrac{1}{8}+\dfrac{1}{2}:\dfrac{1}{2}-\dfrac{1}{16}:\dfrac{1}{16}\)

\(=1-1+1-1\)

\(=0\)

Answer 3

\(a,13,25:0,75+13,75:0,25+13,75:0,325\\ =13,25:\left(0,75+0,25+0,325\right)\\ =13,25:1,325\\ =10\\ b,\dfrac{1}{4}:0,25-\dfrac{1}{8}:0,125+\dfrac{1}{2}:0,5-\dfrac{1}{16}:0,0625\\ =\dfrac{1}{4}:\dfrac{1}{4}-\dfrac{1}{8}:\dfrac{1}{8}+\dfrac{1}{2}:\dfrac{1}{2}-\dfrac{1}{16}:\dfrac{1}{16}\\ =1-1+1-1\\ =0\)